A similar photo by Mick Palarczyk has this caption:
This relief detail shows two lettuces separated by a fan, standing on a small shrine. The growing of prickly lettuce was associated with Min, a fertility god of male sexual potency. Egyptians believed the lettuce to be an aphrodisiac, as it was tall and straight and released a milk-like substance which resembled semen. Min is often depicted with two of these sacred lettuces standing behind him.
The relief can be found on the north wall in the Chapel of Amun, one of the seven chapels that are located directly west of the Second Hypostyle Hall of the Seti I Temple at Abydos.
The detail in this picture is part of the 36 episodes of the Daily Temple Ritual that are shown in the chapel, ranging from Seti entering the sanctuary to cleaning and dressing the statue of Amun and Min, who was closely associated with Amun.
The Seti Temple at Abydos was begun by Seti I and completed by his son Ramses II in the 13th century BC.